18545+2037 STF2415

 
 
18h 54m 32.84s +20 36' 55.1" P.A. 287 sep 1.9 mag 7.07,8.73 Sp A0IV
 
 
Coord 2000
18545+2037
Discov num
STF2415
Comp
Coord arcsec 2000
18 54 32.84 +20 36 55.1
Date first
1831
Date last
2013
Obs
73
Pa first
299
Pa last
287
P.A. Now (θ)
287°
Sep first
2.0
Sep last
1.9
Sep. Now (ρ)
1.9"
Mag pri
7.07
Mag sec
8.73
delta mag (ΔM)
1.66
Spectral class
A0IV (white)
Pri motion ra
+004
Sec motion ra
+004
Pri motion dec
-002
Sec motion dec
-002
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
287.2
Precise sep
1.874
Constellation
Hercules
Tycho2
1592-00227-1
HD
175427
last precise pa
287.2
last precise sep
1.874
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18545+2037 STF2415 2004 67 290 2.0 7.07 8.73 A0IV D 185432.84+203655.1
18545+2037 STF2415 2007 70 290 2.0 7.07 8.73 A0IV D 185432.84+203655.1
18545+2037 STF2415 2010 72 289 1.9 7.07 8.73 A0IV D 185432.84+203655.1
18545+2037 STF2415 2011 73 289 2.0 7.07 8.73 A0IV D 185432.84+203655.1
18545+2037 STF2415 2013 73 287 1.9 7.07 8.73 A0IV D 185432.84+203655.1

If you need more information about this double, apply for a data request form to the WDS.